Two new security books ponder: Just how vulnerable are we?

Two recently-published books, "America the Vulnerable" by Joel Brenner, a former official at the National Security Agency (NSA) and "When Gadgets Betray Us," by writer and security analyst Robert Vamosi, have one theme in common: We've come to depend on modern networks and technology, but the compromise of them by attackers is a serious threat to both individuals and society as a whole.

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Two recently-published books, "America the Vulnerable" by Joel Brenner, a former official at the National Security Agency (NSA) and "When Gadgets Betray Us," by writer and security analyst Robert Vamosi, have one theme in common: We've come to depend on modern networks and technology, but the compromise of them by attackers is a serious threat to both individuals and society as a whole.

In "America the Vulnerable," Brenner, formerly inspector general at the NSA and chief of counterintelligence for the director of National Intelligence, says his work over the years gave him "a hair-raising view of the incessant conflicts being waged in cyberspace — conflicts short of war but involving concerted attempts to penetrate our nation's information systems and critical infrastructure.